Firmware
A deep-dive into architectural failures, race conditions, timing drift, and buffer inconsistencies — and how we corrected them. Problem When we began integrating the PCM1862 across our modular SoM platforms, the expectation was straightforward: configure clocks, bring up I²S, wire DMA, and start capturing clean audio frames. Instead, we ran
Firmware
Designing for interrupted updates and power-loss resilience in real-world embedded systems In the unforgiving world of IoT tracking devices, where power interruptions, network failures, and harsh environments are the norm rather than the exception, implementing robust Over-The-Air (OTA) firmware updates can make the difference between a successful product and expensive
Firmware
Designing LED status indicators seems simple pick some colors, map them to states, and call it a day. But anyone who has deployed IoT devices in real homes, clinics, or outdoor environments knows that LED semantics can become a source of confusion, support tickets, and misdiagnosis if not engineered with
Firmware
Introduction Imagine a pet healthcare system that can detect subtle changes in your pet's gait, identify early signs of skin conditions, monitor breathing patterns during sleep, or track behavioral changes that signal discomfort — all through intelligent vision processing happening at the edge. This isn't science fiction.
Firmware
Why Thoughtful Write Strategies Keep Embedded Systems Alive Flash memory doesn’t fail dramatically. It fades quietly. One block at a time. In modern IoT devices—especially those that run nonstop, buffer telemetry, and handle intermittent connectivity—the way we write data often matters more than the data itself. Excessive
Firmware
In modern embedded platforms, the ability to selectively enable or disable features is more than a convenience—it’s an essential tool for safe rollouts, rapid iteration, and predictable behavior across hardware variants. Firmware today powers ecosystems that span sensors, edge compute, wireless stacks, camera modules, and cloud-connected workflows. In
Firmware
As Engineers, the tools we choose dictate the ceiling of the systems we build. When dealing with a powerful SoC like the Espressif ESP32-S3—with its dual cores, AI vector instructions, and ample I/O the choice of development framework is not merely a matter of preference; it is a
Firmware
Introduction Linux powers everything from routers and EV chargers to drones, cameras, industrial machines, and the modern edge-AI stack. But behind every peripheral that "just works" lies a device driver — the thin layer of software that lets hardware talk to the Linux kernel. For new embedded engineers, Linux
Firmware
A technical guide to shrinking IoT telemetry without breaking edge systems or cloud pipelines. Introduction IoT and embedded systems generate telemetry that overwhelms traditional networks. Sensor readings, actuator states, health logs, diagnostics, and event traces strain: * Wireless bandwidth * MCU flash wear from local buffering * Cloud ingestion pipelines At Hoomanely, telemetry
Firmware
Introduction Many embedded systems behave flawlessly during development. They pass unit tests, survive stress testing, and operate reliably in controlled environments. However, once deployed in the field, they occasionally stop responding without any diagnostic trace. No crash logs, no core dumps, no visible kernel panic. The device simply appears frozen.